Hair dryer



FIG. 1 is a front perspective view of our new design of a hair dryer;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom view shown on an enlarged scale;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a rear perspective view thereof. 

The ornamental design for a hair dryer, as shown and described. 